Sheave-wheel



. VvNITED STATES PATENT Trice.

SHEAVE-WHEEL.

i sPEcIrIcArIoN forming To all whom it may concern:

Beit known that I, ELIJAH B. MARTINDALE, a citizen of the United States, residing at Indianapolis, in the county of Marion, in the State of Indiana, have invented certain'nevv and useful improvements in the construction and mode of manufacture of sheave-Wheels orv pulleys for cables to run upon, of Iwhich the following is a specification.

My said invention consists of a combination sheave-wheel made of iron and paper, pasta board, or other like material. The Wheel, including the hub, arms, rim, and aiiange on one side of the rim, is of iron, cast in one piece. The paper, pasteboard, or other like material is cut into rings of sizes to exactly it over the rim. These rings are pasted together and sub-V jected to heavy pressure until they are compact and solid, forming a complete covering for the iron rim. A movable flange, of iron, is Vcast corresponding to the flange already cast on one side of the rim. This is so made that itcan be securely fastened to its place on one side of the rim with rivets or bolts. The solid paper ring is then forced upon the cast-iron rim, and then the movable iron iiange is secured toits place. The paper ring is thus held firmly upon the rim, and forms the bearingsurface or bed upon which the cable runs. Paper, pasteboard, or other like material is thus substituted as a facing for the cable to` run upon for rubber or Babbitt metal, as has been heretofore used.

Referring to the `accompanying drawings,

which are made a 'part hereof, and on which part of LettersPatent No. 286,322, dated October 9, 1883.

Application fnea May 1, 1883. (Nomen.)

similar letter of reference refer to similar parts, Figure 1 is a side elevation of sheave-wheel made in the manner indicated. Fig. 2 is a sec= tion thereof, and Fig. 3 shows the Wheel with one detached ange.

The portion marked A is the hub, Which may be cast to fit upon a shaft, or with projecting pintles as a substitute for a shaft. B B are arms. C is the rim; D, the flange cast with the rim; E, the ring or facing, of paper, pasteboard, or other like material; F, the movable flange; G, the bolts or rivets securing the movable flange to the rim. The edge of the paper being the part upon which the cable rests, it Will Wear much longer than Babbitt 4metal or rubber, and is much cheaper than either; and when the paper facing Wears out the ange may be removed and a new ring substituted.

Having thus fully described my said invention, what I claim, and desire to secure by Letters Patent, is-

1. A combination sheave-Wheel for cables Vto run upon, made of iron and paper, pasteboard, or other like material, and having a facing of the edge of the paper, pasteboard, or other like material, substantially as set forth.

2. A paper facing for a sheave-Wheel on which the cable runs, secured to the periphery of a oastfiron Wheel by means of a movable flange, substantially as set forth.

ELIJAH B. MARTINDALE. n ln presence oil- LYNN B. MARTINDALE, Louis( A. BUDENZ. 

